Pemko 29324 Split Brush Astrag...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$27.35
$22.85
Pemko 29324 Split Brush Astragal with Concealed Fasteners with Nylon Brush Seal

Pemko 29324 Split Brush Astragal with Concealed Fasteners with Nylon Brush Seal

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Model: 29324CNB 36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$27.35
$22.85
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Pemko 29324 Split Brush Astragal with Concealed Fasteners with Nylon Brush Seal

Professional Door Sealing Solution for Double Active Doors

The Pemko Split Brush Astragal delivers superior sealing performance for double active door applications with its highly compressed nylon filaments encased in an aluminum retainer. This 84"; astragal features concealed fasteners and a snap-on aluminum cover for a clean aesthetic appearance. The nylon brush measures 0.375"; high with an overall casing height of 0.875", providing effective sealing while maintaining smooth operation from -40�F to above 400�F.

Professional Features & Benefits

  • Precise Dimensions: 84"; length with 1-1/4"; height and 1/4"; width for accurate door gap sealing applications.
  • Temperature Performance: Highly flexible nylon brush operates reliably from -40�F to melting point above 400�F for extreme weather conditions.
  • Concealed Fastener Design: Aluminum snap-on cover conceals mounting screws and prevents vandalism while providing clean aesthetic appearance.
  • Heavy-Duty Construction: Aluminum base material with highly compressed nylon filaments for long-lasting durability in commercial applications.
  • Superior Sealing Performance: Brush seals reduce infiltration of smoke, fumes, weather and light while automatically adjusting to slightly uneven floors.
  • Versatile Door Compatibility: Suitable for hollow metal and wood door applications including overhead, section, sliding, and automatic doors.
  • Adjustable Installation: Drilled with slotted holes for precise adjustment and optimal sealing performance.
  • Replacement Components: Replacement snap cover available as item 29316 for extended service life and maintenance flexibility.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: H: 1-1/4", W: 1/2";
  • Product Group: Door Trim and Accessories
  • Product Length: 84";
  • Product Model: 29324
  • Product Subgroup: Astragals
  • Product Substrate: Aluminum
  • Product Type: Astragals
  • Subcategory: Astragals, Gaskets and Weatherstripping

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Pemko Quality?

Pemko astragal products deliver professional-grade reliability with aluminum construction and highly compressed nylon filaments designed for demanding commercial applications. The UV stable, dependable design naturally repels rodents and spiders while providing cost-effective long-term performance. Engineered for demanding commercial applications where dependable sealing performance is essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals
Subcategory:
Astragals, Gaskets and Weatherstripping
Product Model:
29324
Product Dimension:
H: 1-1/4", W: 1/2"
Product Substrate:
Aluminum
Product Category:
Door Trim and Accessories
Department:
Door Hardware
Product Type:
Astragals

Pemko 29324CNB 36 – Frequently Asked Questions

1) Will the Pemko 29324 brush astragal work on a pair of double doors that both swing (no inactive leaf)?
That's exactly what the 29324 split brush astragal is built for. It's a split design, meaning half mounts on each leaf, so the two brush halves meet in the middle and seal the gap without either door being fixed as inactive. An overlapping astragal, by contrast, needs one leaf to close first because the lip laps over the meeting stile. If your pair has an active and inactive leaf and you want a hard overlap, the NGP 109N overlapping astragal with neoprene seal or the NGP 176A are the type to look at instead.
2) Can I mount a Pemko 29324 astragal on a hollow metal door, or is it wood only?
Both. The 29324 mounts to hollow metal and wood doors, and the same extrusion is used on overhead, sectional, sliding and automatic door applications. The base is aluminum with the fastener holes drilled as slots, so you can shift the piece side to side during install to dial in the brush contact before you snap the cover on.
3) I need an astragal on a fire-rated pair of doors - is the Pemko 29324 the right part?
For a fire-rated pair, look at the NGP 139SP, which is a steel fire-rated door astragal with 3/4 inch overlap coverage. Steel construction and the overlap across the meeting edge are what a fire-rated pair calls for. The Pemko 29324 is an aluminum-bodied astragal with a nylon brush seal, built to cut infiltration of smoke, fumes, weather and light on double active doors, and it is the part to use where the job is sealing the gap rather than meeting a fire label on the opening.
4) What is the difference between the Pemko 29324 split brush astragal and the NGP 176A overlapping astragal?
They seal a double door pair in two different ways. The Pemko 29324 is a split brush astragal: highly compressed nylon filaments in an aluminum retainer, mounted so the brush closes the gap between the two door edges, with an aluminum snap-on cover hiding the fasteners. The NGP 176A 84 is an overlapping astragal in anodized aluminum, 84 inches long, which works by carrying a lip that laps across the meeting edge of the inactive leaf. The brush design flexes and takes up an irregular or shifting gap; the overlapping design puts solid aluminum across the joint. Choose the brush where both leaves are active and swing freely, and the overlapping style where one leaf is normally inactive.
5) Is a Trimco 5001 lock astragal a substitute for the Pemko 29324?
No - they are different parts despite the shared word. The Trimco 5001 is a lock astragal in stainless steel, used with mortise or cylindrical locks, and the Trimco 5002 is the same idea at 1-9/16 inch by 6 inch for cylindrical locks. Those are short pieces that go at the lock to close the gap right at the latch. The Pemko 29324 is a full-height sealing astragal running the whole meeting edge, offered in 36, 84, 96 and 108 inch lengths. If you are trying to weatherseal a pair, order the 29324; if you are closing the gap at a lock on a pair, the Trimco pieces are the ones sized for it.
6) Are the screws visible after installing a Pemko 29324 astragal, and can someone unscrew it from the corridor side?
The mounting screws are covered. An aluminum snap-on cover goes over the fastener line after the extrusion is set, which hides the screws and keeps them from being backed out by hand, a real consideration in schools, multi-tenant lobbies and other public corridors. If a cover gets damaged or lost, the snap cover is sold on its own as Pemko 29316.
7) Is a brush astragal or a vinyl/neoprene astragal better for a double door that gets heavy traffic?
Brush and elastomer seals fail differently. The nylon filaments on the Pemko 29324 wipe past each other on every swing rather than dragging a solid gasket lip, so a pair cycled hundreds of times a day doesn't scrub the seal to failure the same way, and the brush keeps working over meeting stiles that are slightly out of alignment. A vinyl insert type like the Cal-Royal EAST-501 T-astragal or the NGP 109N with a neoprene seal gives you a continuous solid barrier, which matters more where you want a tight air or acoustic seal than where you want longevity under traffic. For a solid metal barrier with no seal element at all, the NGP 139A anodized aluminum astragal is the plainer option.
8) Will a Pemko 29324 brush astragal hold up on an exterior door in cold or hot climates?
The nylon brush stays flexible from -40F up to a melting point above 400F, so freeze-thaw cycling and sun-loaded south elevations are both inside its range. The extrusion is aluminum, and it's offered in clear anodized, dark bronze anodized, and black suede powder coat, all exterior-appropriate finishes. It cuts infiltration of weather, smoke, fumes and light, and the material is UV stable.
9) Does an astragal go over the lock, and do I need a separate lock astragal for a Pemko 29324?
Two different parts. The 29324 is a full-height sealing astragal running the length of the meeting stile, aluminum with a nylon brush, and it seals the gap between leaves. A lock astragal is a short plate that shields the latch area on a pair, and if that's what you need, the Trimco 5001 stainless steel lock astragal works with mortise or cylindrical locks, and the Trimco 5002 at 1-9/16 by 6 inches is for cylindrical locks. On a pair with a lock in the meeting stile, check that your hardware clears the 1/2 inch width of the brush extrusion before you set the layout.
10) What can I use instead of the Pemko 29324 if I want a solid metal astragal with no brush or gasket to replace?
The NGP 139A is a solid metal astragal in anodized aluminum construction - one piece of metal across the meeting edge, with no filament or seal element in it. The Pemko 29324 carries a nylon brush 0.375 inch high in an aluminum retainer, which is the wearing part, and its snap cover is available separately as item 29316. If you want an astragal that has nothing to service over its life, the 139A is the solid-metal answer; if you want the gap actively swept closed and are fine maintaining a brush, stay with the 29324.
11) What is the alternative to the Pemko 29324 if the floor and door edges are true and I want a vinyl seal instead of a brush?
The Cal-Royal EAST-501 is an aluminum T-astragal with a vinyl insert for double doors. A vinyl insert gives a continuous compressed contact face rather than filaments. The Pemko 29324 uses nylon brush filaments that automatically adjust to slightly uneven floors and stay flexible from -40F to a melting point above 400F, which is what makes it the choice on openings that have moved or see extreme temperature swing. On a square, well-hung pair in stable conditions, the vinyl T-astragal is the straightforward substitute.
12) Which astragal should I standardize on across a facility where the double doors are exterior and take weather?
Two build directions to weigh. The Pemko 29324 is an aluminum astragal with a compressed nylon brush that reduces infiltration of smoke, fumes, weather and light, is UV stable, repels rodents and spiders, and comes in Clear Anodized Aluminum, Dark Bronze Anodized Aluminum and Black Suede Powder Coat across 36, 84, 96 and 108 inch lengths - enough of a range to cover a mixed door schedule from one part number family. The NGP 109N is an overlapping astragal with a neoprene seal at 84 inch for commercial door weatherstripping, which puts an elastomeric seal at the meeting edge instead of filaments. Standardize on the 29324 where you need multiple lengths and finishes to match existing openings, and on the 109N where your doors are a uniform 84 inch height and you prefer a neoprene contact seal.
13) The doors have a raised or uneven threshold - which astragal handles that better?
The Pemko 29324 is the one built for it. Its highly compressed nylon filaments automatically adjust to slightly uneven floors while the aluminum retainer stays fixed, so the seal takes up variation without binding the leaves. Rigid alternatives close the gap with metal or a fixed lip - the NGP 139A is solid metal anodized aluminum and the NGP 139SP is steel with 3/4 inch overlap - and both hold a set profile that does not flex with the opening. On an out-of-square or settled pair, the brush design gives you the tolerance the rigid ones do not.
14) I'm standardizing weatherstripping across a building. Can I match the Pemko 29324 to dark bronze doors and storefront?
Dark bronze anodized aluminum is one of the three finishes, alongside clear anodized aluminum and black suede powder coat, and each is available in all four lengths (36, 84, 96 and 108 inches). That covers the usual match to bronze anodized storefront and to painted-black hollow metal, so one part number carries across a mixed set of openings in a building with only the finish and length changing on the order.
15) Will a brush astragal keep bugs and rodents out of a warehouse pair of doors?
That's one of the reasons brush is specified on industrial openings. The compressed nylon filaments on the Pemko 29324 repel rodents and spiders, and the brush automatically adjusts to slightly uneven floors and out-of-plumb leaves where a solid gasket would leave a gap at one end. It's commonly used on industrial and warehouse facilities along with commercial office, education, healthcare, retail, multi-tenant residential and government buildings.
16) Which astragals resist tampering on a door pair in a public corridor?
The Pemko 29324 hides its mounting screws under an aluminum snap-on cover, which conceals the fasteners and prevents vandalism, and that cover is replaceable on its own as item 29316 if it gets damaged. Among the alternatives, the NGP 139SP is a steel astragal with 3/4 inch overlap and the Trimco 5001 is stainless steel, both trading on material hardness rather than a concealed-fastener design. For a high-traffic corridor where exposed screws get picked at, the concealed-fastener build on the 29324 is the difference; where the concern is impact rather than fasteners, the steel and stainless options are heavier-bodied.
How fast can I get the Pemko 29324CNB 36 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko 29324CNB 36 come with a warranty?
Absolutely. The Pemko 29324CNB 36 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko 29324CNB 36?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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